How to Eliminate Keyboard Noise on Stream: Microphone Positioning Guide

 Stop relying heavily on software filters. Learn how to use your boom arm and physical microphone positioning to completely eliminate keyboard and mouse click noise.



Pro-Positioning: How to Eliminate Keyboard & Mouse Noise

Even if you buy a completely silent boom arm, a poorly positioned microphone will still pick up every single click from your mechanical keyboard or gaming mouse. Because your boom arm allows for 3D movement, you can use physical placement to naturally block out background noise without relying heavily on software filters.
Here is how to position your arm for maximum noise rejection:
1. Leverage the "Dead Zone" (Polar Patterns)
Most streaming microphones (like the Shure SM7B, Elgato Wave:3, or HyperX QuadCast on cardioid mode) have a cardioid polar pattern. This means they capture sound directly in front of the capsule, slightly at the sides, and absolutely nothing directly behind it.
  • The Trick: Position your boom arm so the back of your microphone points directly down at your keyboard and mouse, while the front faces your mouth. Your keyboard will sit perfectly inside the microphone's natural physical "dead zone," aggressively dampening the sound of your switches.
2. Keep the Mic Close to Your Mouth (The Inverse Square Law)
Audio follows the inverse square law: every time you halve the distance between your mouth and the mic, your voice gets significantly louder relative to the background room noise.
  • The Trick: Bring the microphone via your boom arm within 4 to 6 inches of your mouth. Because your voice is now incredibly loud and dominant, you can turn down your microphone's digital gain setting. This lowers the microphone's sensitivity across the board, making distant sounds like mouse clicks or a PC fan completely drop out of the audio mix.
3. Move the Base Off Your Main Desk (If Possible)
If you smash your keyboard during intense gaming sessions, those heavy typing shockwaves travel directly through your desk frame and up into the base of the boom arm.
  • The Trick: If your arm has an exceptionally long reach, try clamping it to a side table, a shelving unit, or a heavy nightstand adjacent to your desk. By physically decoupling the boom arm from the surface you are typing on, you completely eliminate low-frequency structural rumble.

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